Chemistry Metal are good conductors, because The molecules in them are very close to each other They contain reflecting surface They contain free electrons The molecules in them collide very freely The molecules in them are very close to each other They contain reflecting surface They contain free electrons The molecules in them collide very freely ANSWER DOWNLOAD EXAMIANS APP
Chemistry The value of Avogadro Number is 6.023 × 1025 6.023 × 1022 6.023 × 1024 6.023 × 1023 6.023 × 1025 6.023 × 1022 6.023 × 1024 6.023 × 1023 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The gas used to extinguish fire is Carbon monoxide Neon Carbon dioxide Nitrogen Carbon monoxide Neon Carbon dioxide Nitrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The main buffer system of the human blood is CH3COOH - CH3COO- NH2CONH2 - NH2CONH+ H2CO3 - HCO3 H2CO3 - CO32- CH3COOH - CH3COO- NH2CONH2 - NH2CONH+ H2CO3 - HCO3 H2CO3 - CO32- ANSWER DOWNLOAD EXAMIANS APP
Chemistry Assertion (A) : Synthetic detergents can lather wen in hard water.Reason (R) : Synthetic detergents form soluble calcium and magnesium salts with hard water. Both A and R is true but R is not a correct explanation of A A is false but R is true Both A and R is true and R is the correct explanation of A A is true but R is false Both A and R is true but R is not a correct explanation of A A is false but R is true Both A and R is true and R is the correct explanation of A A is true but R is false ANSWER DOWNLOAD EXAMIANS APP
Chemistry The acid rain destroys vegetations because it contains Sulphuric acid Nitric acid Carbon monoxide Ozone Sulphuric acid Nitric acid Carbon monoxide Ozone ANSWER DOWNLOAD EXAMIANS APP
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